Key words: Safflower, jassid, aphids, pod borers,
lygus bug, lady bird beetle, population dynamics
Scientists at North Dakota State University are working with the ARS scientists to compare
lygus bug populations in sunflower fields planted next to certain other crops.
Lygus Bug, Wheat Stem Sawflies, and Olive Fruit Flies
digoneutis, it appears that it has the potential to control the two
Lygus bugs on alfalfa forage and seed crops over wide areas of the northern United States," says Day.
[40] while comparing the population of predators in organic and conventional cotton, found population of predatory
Lygus bugs significantly abundant in organic cotton.
While cotton growers are using less broad-spectrum insecticide these days, many of them must now spray more narrowly tailored insecticides specifically to combat
lygus bugs. One type of lygus, the tarnished plant bug, Lygus lineolaris, is a particular problem for cotton growers in the Mid-South, while another type, the western tarnished plant bug, L.
Field experiments showed that the populations of secondary pests such as cotton aphids, cotton spider mites, thrips,
lygus bugs, cotton whitefly, cotton leaf hopper and beet armyworm increased in Bt cotton fields after the target pest, bollworm, had been controlled.
Announcer: As much as you'd enjoy putting the
Lygus bugs that are infesting your crops to a slow, painful death, do them a favour, kill 'em fast with DECIS EC.
The coding moth is another natural enemy of common pear trees but the moth, as well as slugs, stink bugs, scale insects
lygus bugs, midges and aphids, affect the fruit more than the wood.
hesperus, cotton growers often walk through their fields waving handheld nets, count the number of
lygus bugs they capture, and make a decision based on established population thresholds.
Of 2,278 pests collected in the four hedgerows over 2 years, 42% were spotted cucumber beetles, 25%
Lygus bugs, 18% flea beetles and 14% stink bugs, with the greatest abundance also occurring during plant bloom (fig.
The degree-day (DD) approach has been successfully used in the past for several economic pests, such as
Lygus bugs (Sevacherian et al., 1977a), codling moth (Johnson, 1988) and peach tree borer (Johnson, 1989).
Throughout his career, he worked on developing the integrated control concept to improve management of
lygus bugs in cotton.
Cohen started with an existing diet that he created for indoor rearing of
lygus bugs. It was patented by USDA in 2000.
For example, she developed a model for estimating how many individuals of two different kinds of beneficial parasites should be put to work in alfalfa fields to zap
lygus bugs. She authored BIOCONTROL-WHITEFLY for control of whitefly on cotton.
